Improved spring-bed bottom



faire i hneln? @ffice dan BYRON PARTELLO, or

DETROIT, MICHIGAN.

Letters Patent No. 88,070, dated March 23, 1869.

IMPRO'VED SP'RINC-LBED BOTTOM The Schedule referred to in. these Letters Patent and making part of the same.

To whom it ma/y conce/rn which the bedding rests; also, in the peculiar arrangement of a device for preventing the same from swaying in a lateral direction; the whole forming an elastic and luxurious foundation, suitable for beds, sofas, lounges, car-seats, and other articles, combining simplicity andv cheapness in construction, with durability in service, noiseless in operation, and oieringno harboring-places to vermin.

A, in the drawings, represents a proper frame of wood, composed of two side and two end-pieces, of such dimensions as will enable it to occupy the space between the side-rails and head and foot-boards of a bedstead or other article of furniture, and is provided with transverse slats, B, upon which are secured the double-elliptic springs C.

These springs are formed ofltwo light strips of steel, bent into the proper shape, and joined at their ends by a rivet, two or more of such springs being riveted together at their centres, as shown.

D is the upper frame, which may be made of wood, but preferably of light'strap-steel, securely riveted at the corners, and to whose side-pieces are riveted ,the

transverse strips d, of thin and elastic metal, upon which the mattress rests. l,

One or more longitudinal bands of leather may be riveted to the upper frame, and transverse strips, 'if' necessary, to better support the bedding.

These strips d are liveted to the centre of the top leaf of each ofthe upper springs under it, as shown.

To prevent any lateral swaying, or vibration in the upper frame, I attaclgsto the under side of each of its four corners, a downward-projecting stud, E, Whose vlength will vary with the size ot' the frame; and in the middle of each of the side and end-pieces ofthe frame A, I erect a post, F, Whose height is proportioned in like manner.

From the top of each post, I run a wire, Gr, to each of the adjoining studs E, and, drawing it taut, secureV it to the bottom of the stud, as shown, so that when one side of the superstructure is depressed sufficiently to carry the wire G below a horizontal plane, the outer end of said Wire will describe an arcof a circle, and keep the end of the ,stud in the radius of the circle so described, and so prevent any tendency in the upper frame to 'sway laterally, to the detriment of the springs.

' What I claim as my invention, and desire tolsecure by Letters Patent, is-

The 'combination and arrangement of the frame A, transverse slats B, springs O, metallic fra-ine D, transverse metallic strips d, studs E, posts F, and wires G, when constructed, arranged, and operating substantially as described, and for the purposes specified.

BYRON PARTELLO.

Witnesses:

H. F. EBnR'rs,

J As. I. DAY. 

